ExperimentTale

Undertale (Video Game)
F/F
F/M
M/M
G
ExperimentTale
Summary
The monsters never knew what awaited them on the surface...or what would happen when Frisk, the last human to fall, would enter their lives. One of these monsters was Sans who was the first to be thrown off the rails of his usual resets. But something was different about this last human. The surface seemed welcoming but there was a secret waiting to unreavel.After Frisk dissapeard right after she freed monsterkind and was presumed they would have never expected to meet again after almost 10 years. It was a shock for all. And a bigger shock to see what the King wanted to achieve.
Note
Umm this is awkward i came up with this idea from reading multiple stories and to be honest i never expected myself to write this....AHAHAHAHA help me...well hope you enjoy this weird story i have created lord have mercy on my poor soul.... povs may change at first but i promise after this it will mostly be sans or frisk...i think...DUNNO im not even sure you can call them character pov xD im new to this ok? I do sometimes check back on my chapters to make sure no mistakes escaped.
All Chapters Forward

The answears and the rebellion

All at the table at Grillby's again. Chara and Asriel told their story. Papyrus was excited when he could add what he knew. Sans was mad at that so he did take 5 minutes to scold his little bro, but then he showed the other's the paper he found.

"what the heck..?" asked Chara as she looked at the paper and then looked at the photo with narrowed eyes. That's when Grillby came to see if they wanted anything else.

"Hello. Can i get you any--...oh my..." The fire element looked conflicted.

"Grillbz..What do YOU know.." The monster seemed to hesitate. He then gestured to his friends to follow him up the stairs, into his home. After he closed the door behind them he started:

"Listen...there is a lot that is being kept from you. I shall start with what is obvious. There is a 1% of the population called "unwanteds". They came into existence when the balance of magic got thrown off back when the monsters were locked Underground. Their traits were so strong they were able to use magic almost the same as monsters. They were strong. From what i have been told there was a war when Frisk was still a child because the population of Unwanted's started growing. it was...gruesome.." Jeez..the kid was a refugee of a war and watched their people fall like that..?

"what i know is that at first they would kill them..but Gaster came in the picture..and as you can see from that paper..he changed their fate..into something worse. They live by two rules."

"Fear And Obey.." Paps..? Damn it...

"But...Unwanteds are stronger than actual humans you know..? They keep Frisk alive because she is destruction in the full sense of the word. She can oblivirate a whole army..with a box cutter." What the hell...Of course his dad would make something that strong. But Grillby didn't look at all alarmed. He smiled.

"Dearie, have you seen my--Oh i didn't know we have guests. Hello!" Muffet came inside the room from the kitchen. Heh. Such a nice family.

"Oh i was just telling them about Frisk's power." The spider laughed.

"With so much power you would think they would kill everyone instead of building a safe heaven for Unwanteds and forming a rebellion. She saved hundreds of kids from the same fate she had!" 

"A rebellion..? THERE IS ONE?!" Chara looked excited. The flame monster smiled.

"Why of course...i am sorry to say your father is only driven by power...and all he wants is control...but WE seek to stop him and bring peace to all 3 races!"

"Grillbz..buddy i don't mean to signal any flames here but..You are in the rebellion as well?" How was so much kept from right under their noses?! THIS IS CHAOS! That's what the kid brought from the first time they stepped inside their god damn homes!

"Fuhuhuhu! But dearie even i am! This is the place they get their information after all!"

"F-Frisk..did Frisk p-plan for us to find that paper..?" Then Fuku smiled as she came in, hearing the conversation.

"I would be more surprised if she didn't. By the way mom, got you some sugar."

"Thank you dearie!"

"SO THE PUNK IS LITERALLY LEADING A REBELLION WHILE BEING TRAPPED IN A FACILITY?! THAT IS SO COOL! PAPS WE NEED TO JOIN!"

"YES INDEED UNDYNE!"

"well for that i suggest you talk with her not me!" And then Grillby laughed. Jeez..such a weird situation to be stuck in.

"But..if you don't feel the cause, or you don't think you can help..i suggest you don't go telling the King.." said the fire monster with a more serious tone.

"No one hurts Frisk and get's away with it..Got it..?" Grillby could be real creepy..Sans knew best. After all he did get his bones kicked out a few times.

"hehehe sorry grillbz we ain't got a bone to pick with you guys..so..do we join..?"Chara looked at him and smiled.

"The human saved our asses once. Let's save hers! Im in!" Asriel nodded too as he smiled at his little maniac girlfriend. Papyrus and Undyne were already excited. Alphys nodded and smiled at her girlfriend. Everyone was looking at Sans. Everyone he knew fought for this..But was it worth it...?

*because someone really cares about you too*

*don't let me get under your skin*

*Ohh! is that a map with the constellations?*

*oh please i saved your bones twice, mister! don't get too cocky*

Yes...Yes it was. Sans everlasting smile turned into a genuine one.

"Well..? wha'cha looking at me? I'm in just like you! don't let my lazy persona fool you!" They all cheered. That's when Grillby got up and said.

"Well then let me show you a small song Frisk herself made to inspire us! Maybe it will inspire you too!"

We are the warriors, who learned to love the pain
We come from different places but have the same name
'Cause we were, 'cause we were,
'Cause we were, 'cause we were born for this
We were born for this
We are the broken ones, who chose to spark a flame
Watch as our fire rages, our hearts are never tame
'Cause we were, 'cause we were,
'Cause we were, 'cause we were born for this
We were born for this

"WOWIE! SUCH A COOL SONG!" Paps. Everything the kid does is hella cool. He can't lie.

"HOW DID WE GET FROM A REBELLION TO A GOD DAMN SONG!?!"yelled Undyne.

Chara and Asriel just started singing while they left the fire element's house. The whole bar joined when they heard their song. Jeez all this was going on right under their noses.

"well..at least we know from where to retrieve our friend...And i truly believe that is.."

"That shady door we told you guys about..?"

"exactly azzy...The door!"And so the journey started.

-----------------------------

Frisk hated her cell. It was plain, boring and sometimes nightmare inducing. What she hated more was the company she had.

"You know..You can leave now Jhonny boy. your little goons must be waiting for you"

"tsk..like hell i'll leave you alone in here! i don't trust you as far as i can throw.."

"which is not much seeing you are pretty weak" she said while snickering.

"WHY YOU---!"

"ah ah ahhhh! open that door and i'll zoom right past ya!" Jonathan growled and spat on the window pf her cell. If she could at least reach that thing...But the chains wouldn't let her.

"Tsk! Im out of here you bitch!" 

"oh bo hooo~! he called me a bitch! die in a ditch will you?" And so he left. That's when she felt some people approaching and she knew exactly who it was. Her friends were right behind the corner.

"Frisk! Oh my god what have they done to you..?" Frisk was confused but then she remembered the good beating she got from doing what she did. She must have looked bloody and awful.

"ehh. it's fine. Got a key or do i need to bust my ass out?" They looked at Undyne who scratched her head.

"W-well about that..ngahhh! i couldn't get it!" Frisk sighed.

"Step back..Don't want you guys getting hurt. Be ready to book it! because as soon as i do this the alarms will go wild!"

"Where will be going after..?" asked Asriel a bit concerned.

"well i do believe you talked with Grillby..so we are going to the Quarters" Frisk smirked. She could finally let go and use magic now that they knew the truth. 

"well bucko. i don't want to pick a bone with ya but...i think we should hurry!" Sans was right. They had to move fast. She concentrated on summoning her magic. The chains broke and she streched.

"WOOO FEELS GOOD TO STRETCH MY ARMS" She broke her shackles and took off her bandana. Now she will surely be able to use her magic properly. Her friends were stunned.

"Y-your eyes...t-they are.." Chara said as she looked at Asriel after and back at her.

"a-alive" said Alphys.

"swirling" said Undyne.

"Moving" said Papyrus.

"..beautiful" The last one caught her off guard as she and the skeleton that said that blushed. Her multicolored eyes were shinning at the praises. It was a real rainbow inside swirling red sea, turning like the waves. But they had a mission. She concentrated again and with two fingers she cut the glass using a magic blade. Chara looked awestruck at her move.

"HOW COME YOU ALWAYS GET THE COOL SHIT" She laughed but the alarms went off. Time to play. 

They all ran as fast as they could while from behind them more and more guards and doctors would gather to stop them. Frisk knew the place inside out though. She had no problem leading them out and she had no problem keeping the guards at a distance. All it took was a few swings of her blade and they would all fly back like bowling pins. They were in the castles hallways when Frisk realized that the doors were blocked. Great. She took them to one of the unused rooms and waited there to trick the guards. They passed right by them so Frisk looked for solutions. The room was a modest bedroom for noble guests probably. They weren't covered in gold like the others. Frisk looked around the place franatically. She had no problem making the jump out of the window but her friends would probably break a few bones. 

"W-what's wrong Frisk..? why d-don't we g-go out through the d-door..?"

"Guarded by Jonathan and the goons" Said Frisk as she opened the wardrobe. Bingo!

"so what do we do punk?" asked Undyne putting a hand on her hip. Typical.

"well..i'm going to need Sans help for this one.." said Frisk as she looked at the older skeleton.

"We'll see how the bones can take it. Hit me. wha'cha got?" Perfect!

"Listen.. You can use blue magic right..? But using it on all of us...Well i do believe we would be draining you faster than a battery! so i though...why not use it on only one object..?" That's when she pulled out a huge blanket.

"T-that w-will work! I-it doesn't need to fully stop us..I-it just needs to slow our fall."

"Yeah bucko but only 6 of us can possibly make that work" 

"numbskull! i don't need the help!"

"Can someone tell me...WHY DOES SHE GET ALL THE COOL SKILLS?!" said Asriel this time.

"Well you heard her. LET'S GO!"

"NYEHEHE! THIS WILL BE FUN!"

And so first Frisk got out through the window on the roof and they all ran on it. From that high they could see the guards searching the gardens.

"Pfft..It's always fun to watch.." Frisk said as she started speeding up. When she got to the edge she didn't even thing twice. She turned towards her friends gestured to the blanket Sans was holding and then she jumped. They all looked at her falling. She quickly did a loop and landed on her feet. They all held the blanket and jumped. The blue magic worked and so they all got down safely. That's when they were spotted.

"STOP IN THE NAME OF THE KING!"

They ran and ran until they suddenly took a left. That's when Papyrus spoke

"H-HUMAN...HUFF HUFF....WHY ARE WE G-GOING TOWARDS THE ECHO TREE..?" 

Frisk smiled. 

"Because Papy that's where the Quarters are!" And they kept going. The guard tailing behind them. Tsk they were getting annoying. They quickly came across the tree. Frisk didn't even pause she ran right past it and jumped over the river. Papyrus and Undyne had no problem with that. The others needed the help of blue magic. That's when Frisk thought she needed to step in. The skeleton wanted to start with Alphys but he was so tired he bearly formed any magic.

"Sans, stop before you strain yourself!" Frisk concentrated and changed from her usual red magic to blue. They all looked in disbelief at her. Right that wasn't a power everyone had.

"It's an experiment thing..NOW GO GO GO!!"

And they started running again. The guards quickly passed the river. That's when she heard the jerk scream:

"DON'T LET THEM GET TO THE CANYON!" The others started looking worried. But she knew that is exactly where they needed to go. And there they were. A huge crack in the middle of the forest. She looked back to see her friends being surrounded.

"well well well...didn't you get far...bitch!" and another slap GREAT! she couldn't bear it...she needed to at least get it off her chest.

"you know...acting like a jackass won't bring him back.." he grabbed her by her straight jacket and looked her in the eyes.

"shut up you dirt eating piece of gar--"

"HE WAS JUST LIKE ME GOD DAMN IT JONATHAN!" his hands were trembling.

"SHUT UP! SHUT UP! YOU ARE THE REASON HE DIED!" she pushed him off.

"HOW DARE YOU BLAME ME FOR YOUR GOD DAMN ACTIONS! HE DIED BECAUSE OF PEOPLE WHO THOUGHT JUST LIKE YOU DO NOW AND WHO ACTED JUST LIKE HOW YOU ARE DOING!"

"HE WAS MY BEST FRIEND!"

"WELL HE WAS MY FUCKING BROTHER!" silence...only the wind could be heard.

"he was my god damn..brother..."Frisk gritted through her teeth

Jonathan looked at her. He then looked away.

"you don't know how sad i was.."

"WELL YOU DON'T KNOW WHAT IT'S LIKE TO BE LEFT IN THAT SHIT HOLE ALONE! HE WAS ALL THE FAMILY I HAD!"

silence...but she was filled with rage and determination...determination to make him understand...

"YOU DON'T KNOW WHAT IT'S LIKE! YOU HAD EVERYTHING GIVEN TO YOU ON A GOD DAMN PLATTER! THE FIRST TIME I TASTED CHOCOLATE I WAS 12 AND IT WAS FROM THE GARBAGE BIN! IT WAS MY FUCKING BIRTHDAY PRESENT!"

guilt....that's what he was feeling...and it was filling the air.

"How about you tell me how it feels to get your mother and father killed in front of you...and then get your brother shoot...because SOMEONE couldn't keep their mouth shut..." She looked at the man in front of her in disgust.

"I-i...he was my friend..."

"FRIEND OR NOT HE IS DEAD!...i understood it...why can't you...?" She was crying now. she couldn't help it..

"i-i loved him Frisky..." what..?

"YOU loved him..? YOU LOVED MICHEL SO MUCH...you chose his life before you pride...?" Guilt. sorrow.

"i-im sorry...im so so sorry..." he was crying too now. Her friends were all looking at the scene with pittying looks. Pitty..that's what she felt for the man in front of her. The man now on his knees.

"if i could do all of it again...i would change..." she turned around..she couldn't look at that sad man. Disgusting.

"well you can't...you made your bed. SO SLEEP IN IT JUST LIKE I SLEPT IN MINE THAT YOU MADE FOR ME. FOR US GOD DAMN IT!" she sobbed...

"he could have been here you know...HE COULD HAVE LIVED A GOOD LIFE! HE COULD HAVE HELPED ME!...i-i--" she looked at the man before her and she kicked him.

"GET UP FUCKING---...s-stop..." she sobbed again..for a second..they were kids again.

*YOU PROMISED YOU WOULD HELP HIM! YOU COULD HAVE HELPED HIM*

*WELL I DIDN'T WANT TO! YOUR KIND IS USELESS*

*DID OUR FRIENDSHIP MEAN NOTHING?! DID MICHEL MEAN NOTHING TO YOU?!*

*I DON'T NEED HIM NOR YOUR STUPID FRIENDSHIP. TAKE YOUR BRACELET BACK*

*FINE! DIE IN HELL!*

"i kept it...i-i kept the bracelet...w-we could h-have been friends Jhonny..w-we could have been on the same s-side...J-just like old times..."

He looked up at her. 

"I-im so sorry...i-i took my anger out on you all these years...a-all this time...i...i-im so sorry Frisky.."

"i miss him too...b-but...i deep down hoped...we could be friends again.." They both couldn't help it. They hugged..then they started laughing. For a second...they were back to the old days.

*CHECK OUT THE BIG CLOUD!*

*one day i wanna use the wings Gaster gave me to fly up there*

*no faiirrr you guys both have wingsss*

*we could hold your hands and we could all three fly*

*laughter*

*i'ts a promise...we will all three fly one day*

"You damn bastard...you sadist you...you...friend"...she missed him so much...she missed their friendship so much: the talk through the glass, the sneaking around, the playing, everything...

"i missed it all too frisky...i-i missed it too" Chara was now crying too at the touching moment on Asriel's shoulder. Papy had his arm around his brother's shoulder and Undyne had her arm around her sobbing girlfriend. 

"y-you know h-how we once stole one of gasters books to see if we could learn to use our powers..?"

"hahaha! w-we blew up half of the kitchen and Candy's!"She sniffed and laughed. Tears still streaming down her face..

"we ended up cleaning for a month!" They both hugged again.

"Frisky..n-nothing can say how sorry i truly am..i-i...i just blamed you instead of blamming myself...and-of course it can't make up for all i have done to you but---"

"shut up you dumbas...you always talked too much...that's why you blew your chances with Michel..." he laughed...

"i-i do have a new boyfriend now.."

"what are we going to do a-about your 'friends' over there, Jhonny..?"

"hah! they cared for me as much as o-one could care about a piece of garbage.."

"throw them away..?"

"throw them away, Frisky.." she smiled as she used her powers and flew all of them back at least a mile.She wiped her nose on her sleeve.

"geez you've always been gross..."

"OH MY GOD! STOP IT YOU TOO IM ALREADY CRYING! NYEEHHHHHHHH!" They both laughed. It felt nice to have her friend back...

"s-so does this mean you'll join the rebellion as well..?"

"i will stop people like Michel from having the same fate as long as im alive" 

She couldn't help the other wave of tears that came over her.

"s-sorry i-i'm patheti--" But instead of Jonathan this time it was Sans.

"never! never say that about yourself..got it bucko? If i were to lose paps...i would probably have taken my life.."

Now it was Chara's and Asriel's turn to feel guilty. But they smiled when they saw Frisk and Sans hugging. The others all thought that they looked cute together. When the two realized Alphys was fangirlig they quickly broke the hug and blushed.

"Frisky's got a boyyyyfriennndddd~?" 

"shut up or i'll cut your legs!"

"so punk! enough of the sappy and dramatic stuff...where are the Quarters..?"

Frisk smiled and pointed in the canyon. 

"guys...do you mind if i first do something before i take you down...? I have a promise to keep..." Frisk let her magic flow and a set of crimson red glowing wings, long as maybe 6 feet, materialized.Chara was looking at them and she was gesturing franatically through the air. Asriel was laughing at that.

"Frisky...you don't mean..." the 'jerk' said with a sad smile on his face.

"Come on Jhonny...we said all three of us would fly right..?" she pulled out her heart necklace and opened it. A boy that was probably 16 or 17 in the photo at the time looked back smiling. Next to him a little girl was giving bunny ears to another boy. The little girl had long brown hair and missed the 2 tooth in the front and the boy had dirty blonde hair and was making a funny face at the camera.

"No way you kept that after all these years! Look at you in this! you were so small! hahahah!" 

"OH. MY! GOD! FRISK LOOKED ADORABLE! SHE LOOKED GOOD WITH LONG HAIR!" She laughed. 

"pfft..Frisk always looks good.." said a small skeleton from the side. She blushed. 

"OI YOU BREAK HER HEART AND I'LL CUT YOUR PELVIS AREA. GOT IT BUDDY!?!"

"JONATHAN WHAT THE FUCK!!"

"LET'S FLY BITCH!" And so she grabbed his hand and they flew towards the clouds. And it was peaceful. But after a few minutes, in which Jhonathan teared up and so did Frisk, they came back down. She started with Undyne and her girlfriend and then continued until the last one which was no other than Sans the skeleton.

"hey bucko...i wanted to say you were pretty brave up there...to say how you felt like that. heh. I was never good with sharing how i feel" she fluttered her wings as they both slowly descended.

"well what can i say..i-i really couldn't hold it in anymore.."

"heh..you felt bonely for so long huh..."

"o-oh...y-...yeah..." silence.

"well know that from now one this bag of bones is here for you..ok buddy..?" Pfft..such a dork. She laughed. 

"h-hey! don't laugh! it's already hard to say this!"

"you know...you remind me a lot of my big bro.."

"oh really..?"

"what can i say. This means you fit right in the family"

"oh my god friskkkkk!" he was blushing. so cute...wait what..? oops now she was blushing.

But for the first time since she came out of the Underground she felt truly happy and complete. The tables were finally turning in her favour and it was the start of something greater.

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